Guilty and unsure of what to do..

Hello I am 22 years old. I am in a relationship with an amazing God fearing man and we are not sexually active because we want to wait until marriage. I let my lust get a hold of me today. I looked at things I didn’t need to and some things I didn’t need to do. I asked God for forgiveness. Should I tell my boyfriend or just leave me asking God for forgiveness and let it be?